Pleiades astrometry arcsecond scale4/6/2023 The orbits of binary stars with a separation of more than 100 AU.Īstronomy Reports, 2021, Vol. It wasĪlso shown that the Thiele-Innes method is not suitable for determining Relevance, serve as the basis for identifying the best solution based onīoth Gaia data and our own observations, and should be continued. With the 26-inch refractor of the Pulkovo Observatory, do not lose their Homogeneous series of ground-based observations, such as CCD observations The orbits of such visual binaries of the Pulkovo research program asĪDS 246, 2757, 10386, and 12169 are presented. Unambiguous in terms of an ascending node. The coincidence of the AMP orbits obtained both from the Gaia DR2 dataĪnd from the Pulkovo series from 1960-2019 leads to an orbit that is The studied wide binary stars, but are also their proper motions. The initial data from the Gaia DR2 catalog are not only high-precisionĬoordinates, parallaxes, and radial velocities of the components of We use a modified method of the apparent motion parameters (AMP), in which Observations with the 26-inch Refractor of Pulkovo Observatory.Ĭentral Astronomical Observatory at Pulkovo, Russian Academy of Sciences, Saint Petersburg, Russia Improving the Orbits of Four Visual Binaries Using Gaia DR2 Data and The orientation of the obtained orbits in the galactic coordinate system is also given.Īppendix to the article part 1 (english), A possiblereason is the presence of inner subsystems. In 20 cases from 67, the quasi-instant motion according to the Gaia DR2 data at the instant 2015.5 contradicts the motion according to all-world observations. Based on these data, the orbits of 16 stars were calculated. For thestars of Pulkovo program of observations with a 26-inch refractor, the Gaia DR2 data were analised. All early determined AMP-orbits were comparedwith new observations, some of them were recalculated, new ones were added. The rest of the observations accumulated in the world serve to control the quality of the orbit and refine some parameters. This short arc determination orbit method isbased on the most reliable astrometric and astrophysical data corresponding to one instantof time. Summed many years of work at Pulkovo, the orbits of 67 wide pairs of visual double and multiple stars (included in 64 systems) which were obtained by the Apparent Motion Parameters (AMP) method are presented. Romanenko L.G., Kiyaeva O.V., Izmailov I.S., Shakht N.A., Gorshanov D.L. Parameters method during the last 40 years. The orbits of visual double and multiple stars obtained by the Apparent Motion Central Astronomical Observatory of RAS at Pulkovo
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